Coleo2')ierological Notices, IV. 519 



whiter seta3, without trace of condensed spots. In cribr-ata the 

 third interval is not only more densely setulose, but appears also to 

 l)e feebly elevated toward base. 



TREPOBARIS n. gen. 



The single species representing this genus is narrow, elongate- 

 oval and subcylindrical in form, resembling somewhat a very elon- 

 gate Aulobaris, and perhaps really allied more closely to that genus 

 than to any other. The prothorax is more elongate and parallel 

 than in Aulobaris, and is briefly tubulate at apex, and in antennal 

 structure it differs from the genus in (juestion by its normally short 

 second funicular joint and longer club, and in tarsal structure by 

 the much smaller third joint, not wider than long though distinctly 

 wider than the preceding. 



As in Pseudobaris, the prosternum is very deeply and abruptly 

 sulcate, the sulcus being much too narrow to receive the beak, and 

 this is another important feature distinguishing it from Aulobaris. 

 The sulcus is of somewhat peculiar form, being moderately and 

 gradually dilated anteriorly and narrowest at a point just before 

 the coxae, a contour which suggests a line of development parallel 

 with that of Aulobaris nnso. 



1 Trepobaris elongata n. sp. — Elongate, subcylindrical, convex, 

 highly polislied and deep black throughout, the setse of the upper surface 

 excessively minute, the third elytral interval without trace of squamules at 

 base ; setae of the under surface very small, erect. Head convex, finely, 

 sparsely punctured, the transverse impression strong, obtusely angulate in 

 profile ; beak rather stout, sparsely punctate, rather strongly arcuate at the 

 base, but feebly so thence to the apex, equal in length to the head and pro- 

 thorax in the male ; antennse moderately slender, the basal joint of the funicle 

 long, the second not twice as long as wide, scarcely one-half as long as the 

 first and much shorter than the next two, the club rather large, oval, densely 

 pubescent, as long as the five preceding joints together and with its basal joint 

 constituting but little more than one-third of the mass. Prothorax very nearly 

 as long as wide, the sides just visibly convergent and nearly straight to apical 

 fourth, then broadly rounded and feebly convergent to the fine apical constric- 

 tion, the apex very briefly tubulate, truncate and fully three-fifths as wide as 

 the base, the latter transverse, the median lobe almost completely obsolete ; 

 disk not very coarsely punctate, without Impunctate line, the punctures 

 scarcely one-third as wide as the scutellum and separated hy fully their own 

 diameters toward the middle, close but not rugulose at the sides. Scutellum 

 moderate, transverse, broadly angulate behind. Elytra at base equal in widtli 

 to the prothorax, fully twice as long as the latter, three-fourths longer than 



